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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,794 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringRenens VdOlivier Zahn & Associés Sàrl
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Olivier Zahn & Associés Sàrl

Summary

About the company

The core activity of Olivier Zahn & Associés Sarl is the design and planning of heating, ventilation and air conditioning systems, as well as physical building planning. This also includes the renovation of existing systems, measurements and expert opinions, as well as the monitoring of heating and ventilation systems. The company offers its services in various fields, including education, administration, healthcare, residential buildings, schools, industry and trade.

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Products & services

Industry:Technical Consulting & Engineering
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Design of heating, ventilation and air conditioning systems
Preliminary studies, preliminary design, project, tendering, execution plans, construction management, commissioning and operating documents for HVAC installations.
Building physics
Optimisation of building-envelope insulation, energy simulations, passive solar energy, thermal balances, vapour and thermal-bridge calculations, supporting documents for permits and Minergie files.
Renovation of existing installations
Economic and energy comparisons of possible measures, management and overall coordination of refurbishment works for existing installations.
Measurements and expert assessments
Energy signatures, static and dynamic measurements, recording of temperature, humidity, differential pressure, electrical power and interpretation of results.
Monitoring of heating and ventilation installations
Consulting engineer mandates for heating and ventilation, analysis of operating problems, supervision of maintenance, monitoring of energy consumption and training of concierges.

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Location

Rue du Lac 33
1020 Renens Vd
Opening hours
Mon
08:00 - 18:00
Tue
08:00 - 18:00
Wed
08:00 - 18:00
Thu
08:00 - 18:00
Fri
08:00 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-372.969.723
Founded
2023 · 3 years
Last commercial register change
January 19, 2023
Employees
1 to 10

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